Ritmo Mundo Men's Swiss Quartz Stainless Steel Sport Watch, Color:Black (Model: 232 Silver) Quartz chronograph with tachymeter bezel Metallic luminous hands, date window at 12 position Arabic numerals at even position, index markers at odd position Case diameter: 50 mm Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving